Convert Mace to Carat (metric)
Convert maces to carats (metric) instantly. 1 mace = 18.89968 carat (metric) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Carat (metric) to Mace converter for the reverse conversion.
Units explained
Mace
The mace equals one-tenth of a tael, about 3.78 grams.
From the Chinese 'qian'; 'mace' is the European trade name.
Chinese and Southeast Asian gold and traditional-medicine trade.
Part of the traditional Chinese tael system.
Carat (metric)
The metric carat (ct) equals exactly 200 milligrams (0.0002 kg).
From Arabic 'qirat' and Greek 'keration', the carob seed once used as a counterweight.
The worldwide standard for gemstone and diamond mass.
The metric carat was fixed at 200 mg internationally in 1907.
Mace to Carat (metric) conversion formula
Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.
The relationship between maces and carats (metric):
To convert maces to carats (metric), multiply the value in maces by 18.89968. To reverse, multiply carats (metric) by 0.0529109488.
How to use this converter
Type a value into the calculator. The result in carats (metric) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Carat (metric) to Mace converter for the reverse direction.
Step-by-step: convert maces to carats (metric)
- Write down the value in maces (mace).
- Multiply that value by the factor 18.89968.
- The product is the equivalent value in carats (metric) (ct).
- To reverse, multiply the carat (metric) value by 0.0529109488.
Worked examples
Example 1 — Convert 1 mace to ct:
1 × 18.89968 = 18.89968 ct
Example 2 — Convert 100 mace to ct:
100 × 18.89968 = 1889.968 ct
Real-world example — Adjacent small-scale precision
One mace equals 1,000 carats (metric) — the standard sub-millimeter precision conversion that materials engineers use whenever they switch between bulk material thickness specs (larger unit) and surface-finish characteristics (smaller unit).
1 mace × 18.89968 = 18.89968 ct
Real-world example — Adjacent metric sub-units
One mace equals 1,000 carats (metric). Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.
1 mace × 18.89968 = 18.89968 ct
Mace to Carat (metric) conversion table
Standard reference values for converting maces to carats (metric):
| Mace [mace] | Carat (metric) [ct] |
|---|---|
| 0.01 | 0.1889968 |
| 0.1 | 1.889968 |
| 1 | 18.89968 |
| 2 | 37.79936 |
| 3 | 56.69904 |
| 4 | 75.59872 |
| 5 | 94.4984 |
| 10 | 188.9968 |
| 20 | 377.9936 |
| 30 | 566.9904 |
| 40 | 755.9872 |
| 50 | 944.984 |
| 100 | 1889.968 |
| 500 | 9449.84 |
| 1000 | 18899.68 |
Frequently asked questions
How many carats (metric) is 1 mace?
How do I convert maces to carats (metric)?
How do I convert carats (metric) back to maces?
How many carats (metric) is 100 maces?
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Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 mace = 18.89968 ct) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.